@article{RM_1984_39_5_a4,
     author = {A. N. Dranishnikov},
     title = {Absolute extensors in~dimension $n$ and dimension-raising $n$-soft maps},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {63--111},
     publisher = {mathdoc},
     volume = {39},
     number = {5},
     year = {1984},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1984_39_5_a4/}
}